# Fast Bitcoin Block Explorer
A light Bitcoin block explorer without address indexing, using only a bitcoin core instance.
Runs live on mainnet, testnet and signet @ http://fbbe.info
Locally can run on regtest.
## Running locally
Supposing to have [rust installed](https://www.rust-lang.org/tools/install) and a synced [bitcoin core](https://bitcoincore.org/en/download/) on mainnet with `txindex=1` and `rest=1` do:
```
git clone https://github.com/RCasatta/fbbe
cd fbbe
cargo run --release
```
## CSS
After changing `custom.css` use a minifier:
```
yui-compressor custom.css > custom.min.css
```
## Mainnet test cases
* Block with most tx 00000000000000001080e6de32add416cd6cda29f35ec9bce694fea4b964c7be
* max inputs per tx 52539a56b1eb890504b775171923430f0355eb836a57134ba598170a2f8980c1
* max outputs per tx dd9f6bbf80ab36b722ca95d93268667a3ea6938288e0d4cf0e7d2e28a7a91ab3
## Memory tracking
To allow running the explorer on low-resource devices the memory usage must be kept low.
### Heaptrack
Better results with debug symbols even in release mode, if not already specified in `Cargo.toml`
use env var `CARGO_PROFILE_RELEASE_DEBUG=true`.
`heaptrack` works by tracking memory management syscall, after installing the tool use:
```sh
cargo build --release
timeout 10m heaptrack ./target/release/fbbe # in this example the tracker runs for 10 minutes
heaptrack_gui heaptrack.fbbe.105581.zst # file created by the previous command
```